Finding the Fourth Proportional to 103,698.51, 155,421.41 and 53,751.08
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Solution
The fourth proportional to 103,698.51, 155,421.41 and 53,751.08 is: 80,561.12
Step by Step Solution
- Step 1: Write the proportion equation
103,698.51 : 155,421.41 = 53,751.08 : x - Step 2: Convert to fraction form
103,698.51/155,421.41 = 53,751.08/x - Step 3: Cross multiply
103,698.51x = 155,421.41 × 53,751.08 - Step 4: Simplify right side
103,698.51x = 8,354,067,596.76 - Step 5: Solve for x
x = 8,354,067,596.76/103,698.51 - Step 6: Final answer
x = 80,561.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.